Vaporizer



Patented Apr. 5, 1927.

UNITEDs'rATI-:s 'PATENT oFFlcE.

JAnvIs SHERMAN WIGHT, or BROOKLYN, NEW Yonx. l

vAPonizEn.

Application inea-November 3o,- `1921, serial No. 518,746.

This invention relates to vaporizers, and las particular reference to nnprovements 1n rlevic'es intended for supplying tol a combustion engine with a fuel mixture, av quantity Figure 1 shows the invention applied to al motor velncle engine of conventional form.

Figure 2 is Aa sectional elevation of the vapoizer. l Y

Figure 3 is a transverse section taken on the line 3-3 of Figure 2, an

Figure 4 is a section taken on the line 4--4 of Figure 2. g

Referring to# the drawings, 1 denotes a motor vehicle, the power plant 2'thereof being `an internal combustion engine of the usual type having intake manifold 3 and exhaust manifold 4 leading to exhaust pipe 5. Vaporizer 6 having an upper float chamber 7 and a lower heating chamber 8, is mounted by means of the screw threads 9 on exhaust pipe 5, the lower portion of heating lchamber 8 extending well within pipe 5. Chambers 7 and 8 are connected by a passage 10. Water is supplied from any convenient source, as for instance, the cooling jackets of engine 2, through pipe 1l i leading to valve chamber 12 of vaporizer 6.

Valve chamber 12 communicates with the interior of lvaporizer 6, preferably by means of a passage 13 leading into heating chamber 8, as shown, although if desired it may be connected to float -chamber 7. Valve 14 on stem 15, cooperating Jwith valve seat 16 in valve chamber 12, controls the passage of water through the latter. Float 17 in chamber 7 is secured to the upper portion of valve stem 15, the latter being threaded through nut 18 secured to float 17, thus providing for adjustment and permitting the level of the water to be altered as desired. Lock nut 19 maintains float 17 in any givenI position on valve stem 15.

Float chamber 7 is connected above the water level to intake manifold 3 by pipe 204 connected to outlet 2110i? chamber 7. Valve,

22, preferably of the rotary type andl actuated byrocker arm 23, and `having its `passage of smaller diameter rthanthe interior ofou'tlet 2l,^is positioned in-outlet 21, which is somewhat constricted at that point to provide a valve seat. Rod 24 is pivoted to the end o arm 23 and provides for actuating valve 22 'from dashboard 25. The control end ol rod 24 is provided with a notched or serrated slide 26, which engages slotted plate 27 on dashboard 25 to maintain valve 22 in any desired position.

In order to supply water in liquid form to the heated engine for removing accumula` tions ot' carbonit is necessary to flood reser- Voir 6. This is accomplished by depressing` valve stem 15 through tappet rod 28 passing through the top of chamber 7 and normallv held up and ont of contact with valve stem 15 by helical compression spring'29, which surrounds valve stem 15 and is maintained between disc 30 on the upper end of the latter, and the top surface ot' the wall o1' chamber 7. Lever 31, pivoted to lug 32 on the top of chamber 7, engages disc 30, and

is actuated to depress the latter by rod 33,

to which it is pivoted and which terminates in control knob 34 positioned at the dashboard.

Airis admitted into chamber 7 through passage 35 in the upper portion thereof, the Supply being controlled by valve 36, the stem 37 thereof being threaded into the wall of chamber 7 to provide for adjustment.

Spring 38 engaging notches in the head of valve stem' 37, maintains the latter in any i givenposition. The heat normally supplied from 'the'exhaust will produce water vapor in chamber 7, and such vapor will be drawn into manifold 3 through pipe 20, valve 22, and outlet 21, the amount of air mixed therewith being relatively small 'and not ordinarily varied after being adjusted to the needs of the pary ticular engine. It is desirable periodically to admit a larger quantity of water with the engine running heated,l in order to prevent accumulations of carbon; this should also be done Whenever anyvsuch accumulations have formed to reduce the same, sur-h accumulations being partly due to carbon and. partly to dust drawn in through the carbureter. By depressing tappet rod 28, chamber 7 floods and the water is drawn into pipe 20, being atomized upon passing through the no Y g f I l1,623,452

constricted passage of valve 22, so that it is not drawn into the engine in drops, but in the form of spray or. globules. If desired, pipe may be heated, but this-is not ordinarily necessary.

lSdpring 40 secured to arm 41 of valve 22 ten s to hold said arm against stop lug 42 y onkreservoir 6, and in conjunction with the serrations of slide 26 maintains valve 22 in an given position.

his application is a continuation in part of'iny previous application Serial Number asogsafiiedMay 12, 1920. i

What I claim is:

1. A vaporizer for aninternal combustion engine, comprising in combination, a Water supply,ran automatic valve controlling said Water supply, an air supply, means for vaporizing the Water and mixing the air with the water vapor, an outlet for supplying said mixture to the engine intake manifold, and means cooperating Withsaid valve for supplying an excess of moisture from said vaporizer to said outlet in the form of globules or spray. v

2. A vapoiizer for an internal combustion engine, comprising in combination, a,

Water reservoir, Water and air supply thereto, means for vaporizing Water from the reservoir, means for controlling the Water level within said reservoir, an outlet above the normal water level for supplying a mixtureof water vapor and air to the engine intake manifold, and means for flooding the reservoir with water above said outlet and supplying only water to said outlet from the vaporizer.

3. A vaporizer for a motorl vehicle internal combustion engine comprising in combination, a water supply, a float valve controlling said water supply, an air supply,

means for vaporizing the Water and mixing air With the' Water vapor, 'an outlet from said means for supplying the mixture to the.

engine intake manifold, and means actuated from adjacent the drivers seat engaging said valve andopening the same for supplyingan excess of moisture from said vaporizer to said engine.

4;. The combination With a vaporizer having a vapor chamber, air and Water inlets to said chamber, a pipe having a -restricted reservoir, Water an'd air supply therefor, ac

heating chamber below the reservoir which is adapted to be inserted in the engine exhaust pipe for supplyingwater vapor to the reservoir, an outlet from the reservoir above the normal Water level for supplying a -inixture of Water vapor and air to the engine intake manifold, a float Within the resei voir for controlling the supply of water thereto, means for depressing the float and flooding the reservoir, and means in said outlet for breaking up Water from the flood-- ved reservoir into globules or spray.

Signed at Brooklyn, in the county of Kings and State of New York, this 26th day of NovemberpA. D. 1921.

JARvIs SHERMAN wier-rr. 

